CN103701418B - The compensation method of the power amplification unit of wireless radio frequency modules - Google Patents
The compensation method of the power amplification unit of wireless radio frequency modules Download PDFInfo
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- CN103701418B CN103701418B CN201310594245.7A CN201310594245A CN103701418B CN 103701418 B CN103701418 B CN 103701418B CN 201310594245 A CN201310594245 A CN 201310594245A CN 103701418 B CN103701418 B CN 103701418B
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Abstract
The present invention is related to a kind of compensation method of the power amplification unit of wireless radio frequency modules, wherein wireless radio frequency modules include a fundamental frequency unit, a Transmit Receive Unit, a power amplification unit and a control unit, and fundamental frequency unit is through control unit and Transmit Receive Unit connection power amplification unit.Fundamental frequency unit can be according to the characteristic of power amplification unit, an at least control signal is transmitted to control unit, to adjust the output signal characteristics of power amplification unit, a Transmit Receive Unit control signal is either transmitted to Transmit Receive Unit, to adjust the radiofrequency signal characteristic that Transmit Receive Unit is sent to power amplification unit, or directly adjustment is sent to the fundamental frequency signal characteristic of Transmit Receive Unit so that the output signal characteristics of power amplification unit can meet the specification of related system.
Description
Technical field
The present invention is related to a kind of compensation method of the power amplification unit of wireless radio frequency modules, may be such that power amplification list
The size of power output of member, power output are to the curve of time, the shape and other ACLR and EVM of frequency spectrum (spectrum)
Etc. the specification that characteristic meets related system.
Background technology
Referring to Fig. 1, the block schematic diagram for existing wireless radio frequency modules.As illustrated, wireless radio frequency modules 10 include
One fundamental frequency unit 11, a Transmit Receive Unit 13, a control unit 15 and a power amplification unit 17, wherein fundamental frequency unit 11 divide
Tou Guo not Transmit Receive Unit 13 and the connection power amplification unit 17 of control unit 15.
One control signal TRx_con and a fundamental frequency signal BB_sig can be sent to Transmit Receive Unit by fundamental frequency unit 11
13, wherein control signal TRx_con to control unlatching/closing of Transmit Receive Unit 13, Frequency Band Selection, power output and its
Its correlation function, fundamental frequency signal BB_sig then transmit the modulating signal related to system specifications to the radio-frequency receiving-transmitting list being connected
Member 13, and raising frequency is carried out to produce a radiofrequency signal RF to fundamental frequency signal BB_sig with Transmit Receive Unit 13.Radio-frequency receiving-transmitting list
Radiofrequency signal RF further can be sent to power amplification unit 17 by member 13, and amplify the radio frequency received with power amplification unit 17
Signal RF, the radiofrequency signal by amplification is then exported again.
Control unit 15 connects power amplification unit 17, and to control power amplification unit 17 to open, close and grasp
Make the selection of frequency range, or the power output of adjustment power amplification unit 17.In practical application, control unit 15 can change offer
To the supply voltage Vcc and/or bias Vbias of power amplification unit 17, thereby to control power amplification unit 17 to open, close
With the selection of operation frequency range, thereby to adjust the power output of power amplification unit 17 so that the appropriateness of power amplification unit 17
Amplify the radiofrequency signal RF received by Transmit Receive Unit 13.
Fundamental frequency unit 11 at least can will be sent to control unit 15 by a control signal PA_con, and be further transmitted through control letter
Unlatching, closing and the selection of operation frequency range of number PA_con control power amplification unit 17.In addition fundamental frequency unit 11 also can be by separately
An outer power control signal Vramp is sent to control unit 15, and further controls the power output of power amplification unit 17.
Industry is to the power output and time (power of the power amplification units 17 of wireless radio frequency modules 10 at present
Vs.time curve) carries out specification, with Global System for Mobile Communication（Global System for Mobile
Communications, GSM）Exemplified by, the power output of power amplification unit 17 must fall in specific area to the curve of time
In domain, just pass through GSM specification.
But in practical application, the power output of power amplification unit 17 can be affected by many factors, such as work
Make the frequency range or frequency of temperature, the temperature of power amplification unit 17 and memory effect and the radiofrequency signal of input power amplifying unit 17
Rate, and cause expection of the power output of power amplification unit 17 to the relation curve and script of time difference occur.
It is above-mentioned in order to solve the problems, such as, it can typically be adjusted in control unit 15, adjustment is supplied to power amplification unit 17
Supply voltage Vcc and/or bias Vbias, thereby to correct or compensate the power output of power amplification unit 17.It is but simple
All it is being the adjustment of analog signal, the adjustment of analog form is more complicated, also less modification in the adjustment that control unit 15 is done
Elasticity, thus be unfavorable for the design, adjustment or control of whole communication module.Such as control unit 15 is through supply voltage Vcc
And/or error is easily produced during the power output of bias Vbias adjustment power amplification units 17, and cause power amplification
The power output of unit 17 exceeds the identification of related specifications to curve or frequency spectrum (spectrum) shape of time, and can not lead to
Cross the specification of GSM or related system.
The content of the invention
The purpose of the present invention, is to provide a kind of compensation method of the power amplification unit of wireless radio frequency modules, wherein
Fundamental frequency unit outputs control signals to power amplification unit through control unit connection power amplification unit, and power amplification
Unit then adjusts its power output according to control signal.The power output size of fundamental frequency unit Main Basiss power amplification unit,
Power output is to the relation of frequency, power output to the relation of time, and the temperature characterisitic of power amplification unit, memory effect
Should, the correlation properties such as linearity characteristic, bias characteristic, adjust control signal so that the power output of power amplification unit it is big
Small, power output leaks ratio to the curve of time, the shape of frequency spectrum (spectrum) and other Adjacent Channel Powers
(Adjacent Channel Leakage Power Rate, ACLR) and error vector magnitude (Error Vector
Magnitude, EVM) etc. characteristic meet the specification of related system.
The purpose of the present invention, is to provide a kind of compensation method of the power amplification unit of wireless radio frequency modules, wherein
Fundamental frequency unit outputs control signals to Transmit Receive Unit through Transmit Receive Unit connection power amplification unit, and radio frequency
Transmit-Receive Unit will adjust it according to control signal and be delivered to the characteristics of signals of the radiofrequency signal of power amplification unit.Fundamental frequency unit master
Control signal is adjusted according to the characteristic of power amplification unit, wherein being sent to penetrating for power amplification unit by Transmit Receive Unit
Frequency signal has characteristic of the different intensity from different modulating signals so that the size of the power output of power amplification unit, it is defeated
Go out the characteristics such as the curve of power over time, the shape of frequency spectrum (spectrum) and other ACLR and EVM and meet related system
Specification.
The purpose of the present invention, is to provide a kind of compensation method of the power amplification unit of wireless radio frequency modules, wherein
Fundamental frequency unit, in a digital manner through digital analog converter, digital controlled signal is turned according to the characteristic of power amplification unit
Into analog control signal, it is then transported on analog control signal control and compensates the change of power amplification unit, accurately adjust work(
The power output size of rate amplifying unit, power output are to correlation properties such as the relation of time and the linearities so that power amplification
The size of the power output of unit, power output to the curve of time, the shape of frequency spectrum (spectrum) and other ACLR and
The characteristics such as EVM meet the specification of related system.
The purpose of the present invention, is to provide a kind of compensation method of the power amplification unit of wireless radio frequency modules, and it is led
The characteristic of power amplification unit is obtained or measured in advance, and power amplification unit is adjusted in a manner of digitized according to the characteristic
Output signal characteristics so that curve, frequency spectrum of the power output size, power output of power amplification unit to the time
(spectrum) characteristic such as shape and other ACLR and EVM meets the specification of related system.
To reach above-mentioned purpose, the present invention provides a kind of compensation method of the power amplification unit of wireless radio frequency modules, its
Middle wireless radio frequency modules include a fundamental frequency unit, a Transmit Receive Unit, a control unit and a power amplification unit, and fundamental frequency
Unit comprises the following steps through control unit and Transmit Receive Unit connection power amplification unit：Measure power amplification unit
An at least characteristic, wherein relation to frequency of the power output size of characteristic including power amplification unit, power output, output
The relation of power over time, and the temperature characterisitic of power amplification unit, memory effect, linearity characteristic, bias characteristic etc.；In
The characteristic of power amplification unit is set in fundamental frequency unit；Characteristic of the fundamental frequency unit according to power amplification unit, the control of transmission at least one
Signal processed is to control unit；And correlation properties of the control unit according to control signal adjustment power amplification unit so that power is put
The power output of big unit meets characteristics such as the curve of time, the shape of frequency spectrum (spectrum) and other ACLR and EVM
The specification of related system.
In the embodiment of compensation method one of the power amplification unit of wireless radio frequency modules of the present invention, in addition to following step
Suddenly：Characteristic according to power amplification unit establishes a look-up table.
In the embodiment of compensation method one of the power amplification unit of wireless radio frequency modules of the present invention, in addition to following step
Suddenly：Characteristic according to power amplification unit establishes equivalent behavior model.
In the embodiment of compensation method one of the power amplification unit of wireless radio frequency modules of the present invention, in addition to following step
Suddenly：Fundamental frequency unit is sent to the control signal of control unit according to look-up table or equivalent behavior model, adjustment.
In the embodiment of compensation method one of the power amplification unit of wireless radio frequency modules of the present invention, in addition to following step
Suddenly：Transmit Receive Unit transmits a radiofrequency signal to power amplification unit.
In the embodiment of compensation method one of the power amplification unit of wireless radio frequency modules of the present invention, in addition to following step
Suddenly：Fundamental frequency unit is sent to an at least radio-frequency receiving-transmitting list for Transmit Receive Unit according to look-up table or equivalent behavior model, adjustment
First control signal and/or fundamental frequency signal, to adjust the characteristics such as the intensity of Transmit Receive Unit output signal or modulating signal, match somebody with somebody
Close the correlation properties of power amplification unit so that the output signal of power amplification unit meets the specification of related system.
In the embodiment of compensation method one of the power amplification unit of wireless radio frequency modules of the present invention, in addition to following step
Suddenly：Fundamental frequency unit obtains at least one work information of power amplification unit.
In the embodiment of compensation method one of the power amplification unit of wireless radio frequency modules of the present invention, in addition to following step
Suddenly：Work information and look-up table or equivalent behavior model of the fundamental frequency unit according to power amplification unit, it is single that adjustment is sent to control
The control signal of member.
In the embodiment of compensation method one of the power amplification unit of wireless radio frequency modules of the present invention, wherein the information bag that works
Include operating temperature, the frequency or frequency range of the radiofrequency signal received of power amplification unit.
In the embodiment of compensation method one of the power amplification unit of wireless radio frequency modules of the present invention, wherein characteristic includes work(
The size of rate amplifying unit power output, and/or power output is to time relationship characteristic, and/or power output is to the pass of frequency
System and/or the temperature characterisitic and/or memory effect of power amplification unit and/or linearity characteristic and/or bias characteristic etc.
Information, and/or the power output of power amplification unit and the frequency of radiofrequency signal or the relation of frequency range of reception.
In the embodiment of compensation method one of the power amplification unit of wireless radio frequency modules of the present invention, in addition to following step
Suddenly：Fundamental frequency unit is sent to according to the characteristic and work information, adjustment of look-up table or equivalent behavior model and power amplification unit
At least a Transmit Receive Unit control signal and/or the fundamental frequency signal of Transmit Receive Unit, it is defeated to adjust Transmit Receive Unit
Go out intensity or modulating signal characteristic of signal etc., coordinate the correlation properties of power amplification unit so that power amplification unit it is defeated
Go out the specification that signal meets related system.
In the embodiment of compensation method one of the power amplification unit of wireless radio frequency modules of the present invention, wherein control signal bag
Include a power control signal and/or a power amplification unit control signal.
In the embodiment of compensation method one of the power amplification unit of wireless radio frequency modules of the present invention, wherein control signal bag
Include data signal and/or analog signal.
In the embodiment of compensation method one of the power amplification unit of wireless radio frequency modules of the present invention, wherein fundamental frequency unit bag
A D/A conversion unit is included, and the analog signal after conversion is sent to control unit through D/A conversion unit.
Brief description of the drawings
Fig. 1：For the block schematic diagram of existing wireless radio frequency modules；
Fig. 2：For the step flow chart of the embodiment of compensation method one of the power amplification unit of wireless radio frequency modules of the present invention；
Fig. 3：For the block schematic diagram of the embodiment of wireless radio frequency modules one of the present invention；
Fig. 4 A：For the power control signal Vramp and the graph of a relation of time of the output of general fundamental frequency unit；
Fig. 4 B：The graph of a relation of power output and time for general power amplification unit；
Fig. 5 A：The power control signal Vramp and the graph of a relation of time exported for the fundamental frequency unit of one embodiment of the invention；
And
Fig. 5 B：The graph of a relation of power output and time for the power amplification unit of one embodiment of the invention.
Wherein, reference：
The fundamental frequency unit of 10 wireless radio frequency modules 11
The control unit of 13 Transmit Receive Unit 15
17 power amplification units
The fundamental frequency unit of 20 wireless radio frequency modules 21
The Transmit Receive Unit of 211 D/A conversion unit 23
The power amplification unit of 25 control unit 27
TRx_con control signals
BB_sig fundamental frequency signals
S1 control unit control signals
PA_con control signals
S2 Transmit Receive Unit control signals
Vramp power control signals
Vcc supply voltages
Vbias is biased
RF radiofrequency signals
Embodiment
Referring to Fig. 2, for the power amplification unit of wireless radio frequency modules of the present invention one embodiment of compensation method the step of
Flow chart.As illustrated, please refer to shown in Fig. 3, wireless radio frequency modules 20 include a fundamental frequency unit 21, a radio-frequency receiving-transmitting list
First 23, one control unit 25 and a power amplification unit 27, wherein fundamental frequency unit 21 connect power amplification through control unit 25
Unit 27, and connect power amplification unit 27 through Transmit Receive Unit 23.
Fundamental frequency unit 21 can be used to a fundamental frequency signal and be sent to the Transmit Receive Unit 23 being connected, and be received with radio frequency
23 pairs of bill member receives fundamental frequency signal BB_sig and carries out raising frequency to produce a radiofrequency signal RF.Transmit Receive Unit is then passed through again
Radiofrequency signal RF is sent to power amplification unit 27 by 23, and amplifies the radiofrequency signal RF received with power amplification unit 27.
In an embodiment of the present invention, fundamental frequency unit 21 can transmit existing TRx_con control signals to radio-frequency receiving-transmitting list
Member 23, and/or a Transmit Receive Unit control signal S2 is transmitted to Transmit Receive Unit 23, and adjust and be sent to power amplification list
The radiofrequency signal RF of member 27 intensity or power output and/or modulating signal characteristic, wherein control signal TRx_con and S2 can be
Data signal or analog signal.
In an embodiment of the present invention, fundamental frequency unit 21 can control according to the characteristic of power amplification unit 27 and change biography
The fundamental frequency signal BB_sig of Transmit Receive Unit 23 is delivered to, and adjust the radiofrequency signal RF's for being sent to power amplification unit 27
Intensity or power output and/or modulating signal characteristic.
Control unit 25 can be used to adjust the power output of power amplification unit 27, such as adjust power amplification through Vcc
The supply voltage of unit 27, and/or the bias state through Vbias adjustment power amplification units 27, are put with this to adjust power
The output signal characteristics of big unit 27.In embodiments of the present invention, fundamental frequency unit 21 can transmit an at least control signal to control
Unit 25, and control unit 25 will adjust the output signal characteristics of power amplification unit 27 according to the control signal received.
In an embodiment of the present invention, control signal can be original PA_con control signals and/or a control unit control
A signal S1 processed and/or power control signal Vramp, and control signal PA_con, S1 and Vramp can be data signal or mould
Intend signal.When control unit 25 is by the reception control unit control signal S1 of fundamental frequency unit 21 and/or power control signal Vramp
Afterwards, control unit 25 will adjust power according to the control unit control signal S1 and/or power control signal Vramp of reception
The output signal characteristics of amplifying unit 27.
In an embodiment of the present invention, fundamental frequency unit 21, Transmit Receive Unit 23, control unit 25 and power amplification unit
27 can be independent component or chip.But in practical application, also can be by fundamental frequency unit 21, Transmit Receive Unit 23, control
Unit 25 and/or power amplification unit 27 are integrated into same chip, such as fundamental frequency unit 21 and Transmit Receive Unit 23 is whole
Same chip is synthesized, and control unit 25 and power amplification unit 27 are integrated into same chip, dotted line as shown in Figure 3
Construction.Certainly also further fundamental frequency unit 21, Transmit Receive Unit 23, control unit 25 and power amplification unit 27 can be integrated
Into single individual chip.
It is before the compensation of power amplification unit 27 of wireless radio frequency modules 20 is carried out, it is necessary to pre- in the embodiment of the present invention
The characteristic of power amplification unit 27 is first obtained, such as power amplification unit 27 is measured, wherein the characteristic measured includes work(
The power output size of rate amplifying unit 27, and/or power amplification unit 27 power output to the characteristic of temperature relation, and/
Or the power output of power amplification unit 27 is to the characteristic of frequency relation, and/or during the output signal pair of power amplification unit 27
Between relation variation characteristic, and/or the radiofrequency signal RF frequency range that power amplification unit 27 receives, and/or power amplification unit
27 memory effect characteristic, and/or the linearity characteristic of power amplification unit 27, and/or the bias of power amplification unit 27 are special
Property etc., as indicated at step 31.
The characteristic of power amplification unit 27 is then set in fundamental frequency unit 21, as shown in step 33.In practical application
A look-up table (look up table) can be established according to the characteristic of power amplification unit 27, or establishes one and is put close to power
The equivalent behavior model of the characteristic of big unit 27, and look-up table or equivalent behavior model can be stored in fundamental frequency unit 21, or will
Look-up table or equivalent behavior model link with fundamental frequency unit 21 so that fundamental frequency unit 21 can be taken by look-up table or equivalent behavior model
The characteristic of power amplification unit 27 is obtained, and adjusts the control signal for being sent to control unit 25.
Fundamental frequency unit 21 can be according to the characteristic of power amplification unit 27, a transmission at least control signal to control unit 25,
Wherein control signal may include original PA_con control signals and/or a control unit control signal S1 and/or a power control
Signal Vramp processed, as shown at step 35.
Control unit 25 is in the control signal for receiving fundamental frequency unit 21 and being transmitted, it will according to control signal adjustment power
The characteristics of signals of amplifying unit 27 so that the output signal characteristics of power amplification unit 27, such as the output of power amplification unit
Watt level, power output to the relation of frequency, power output to the curve of time, the shape of frequency spectrum (spectrum) and its
Its Adjacent Channel Power is leaked than (Adjacent Channel Leakage Power Rate, ACLR) and error vector magnitude
Characteristics such as (Error Vector Magnitude, EVM) meets the related specifications of institute's application system, such as meets Universal Mobile and lead to
News system (Global System for Mobile Communications, GSM）Specification, as shown in step 37.
In an embodiment of the present invention, fundamental frequency unit 21 may include a D/A conversion unit (DAC) 211, and fundamental frequency
Unit 21 can pass through D/A conversion unit (DAC) 211 and transmit analog control signal S1 and simulated power control signal V
Ramp is to control unit 25 so that fundamental frequency unit 21 can pass through the output that control unit 25 is accurately controlled power amplification unit 27
Characteristics of signals.
In practical application, the power output of power amplification unit 27 may change with the change of operating temperature, example
Such as when power amplification unit 27 operating temperature rise when, may result in power amplification unit 27 power output decline or on
Rise.Now fundamental frequency unit 21 can the characteristic according to power amplification unit 27 or the characteristic according to power amplification unit 27 established
Look-up table (look up table) or equivalent behavior model, adjustment are sent to the control unit control signal S1 of control unit 25
And/or power control signal Vramp, to cause the power output of power amplification unit 27 and time (power vs.time)
Curve falls in specific region.
Control unit control signal S1 and/or power control signal Vramp are sent to control unit 25 by fundamental frequency unit 21
Afterwards, control unit 25 will be delivered to power according to control unit control signal S1 and/or power control signal Vramp adjustment
The Vcc and/or Vbias of amplifying unit 27, to adjust the output signal characteristics of power amplification unit 27.Because the present invention is to pass through
Control unit control signal S1 and/or power control signal Vramp adjusts the output signal characteristics of power amplification unit 27,
So that fundamental frequency unit 21 can pass through the output signal characteristics that control unit 25 is accurately controlled power amplification unit 27.
Exemplified by adjusting fundamental frequency unit 21 and be supplied to the power control signal Vramp of control unit 25, general fundamental frequency unit
21 be supplied to control unit 25 power control signal Vramp be one close to square wave waveform, as shown in Figure 4 A.When power is put
When the power output of big unit 27 changes with operating temperature, it will cause power output and the time of power amplification unit 27
The curve of (power vs.time) is beyond default region originally, and as shown in Figure 4 B, wherein solid line is power amplification unit 27
Power output and the curve of time, and dotted line is then the curve of related specifications, such as Global System for Mobile Communication (Global
System for Mobile Communications, GSM）Specification.
In an embodiment of the present invention, fundamental frequency unit 21 can be according to the characteristic of power amplification unit 27 or according to power amplification
The look-up table (look up table) or equivalent behavior model adjustment power control signal V that the characteristic of unit 27 is established
Ramp so that fundamental frequency unit 21 is supplied to the power control signal V ramp of control unit 25 figure as shown in Figure 5A, now
Vramp be sawtooth like ripple voltage waveform.By fundamental frequency unit 21 in advance according to power amplification unit 27 characteristic institute
The look-up table (look up table) of foundation or equivalent behavior model adjustment power control signal Vramp, therefore when power is put
When the power output of big unit 27 changes with operating temperature, power output and the time (power of power amplification unit 27
Vs.time curve) can still fall in default region originally, and as shown in Figure 5 B, wherein solid line is the defeated of power amplification unit 27
Go out power and the curve of time, and dotted line is then the curve of related specifications, such as Global System for Mobile Communication (Global
System for Mobile Communications, GSM）Specification.
In addition the characteristic that fundamental frequency unit 21 can be according to power amplification unit 27 or the characteristic institute according to power amplification unit 27
The look-up table (look up table) of foundation or equivalent behavior model, adjustment are sent to the control unit control of control unit 25
Signal S1, and the output signal that control unit 25 can then adjust power amplification unit 27 according to control unit control signal S1 is special
Property so that the power output of power amplification unit 27 falls in default region originally with the curve of time (power vs.time).
In an alternative embodiment of the invention, fundamental frequency unit 21 can be put according to the characteristic of power amplification unit 27 or according to power
The look-up table (look up table) or equivalent behavior model that the characteristic of big unit 27 is established, adjustment are sent to radio-frequency receiving-transmitting
The Transmit Receive Unit control signal S2 and/or fundamental frequency signal BB_sig of unit 23, power amplification list is delivered to this to adjust
The radiofrequency signal RF of member 27 characteristics of signals so that the power output of power amplification unit 27 and time (power vs.time)
Curve fall in default region originally.Such as if the temperature characterisitic of power amplification unit 27 is that power output is with temperature
Rise and decline, when the operating temperature of power amplification unit 27 rises, and causes the power output of power amplification unit 27 to decline,
Fundamental frequency unit 21 can pass through Transmit Receive Unit control signal S2 control Transmit Receive Unit 23, to improve Transmit Receive Unit 23
The radiofrequency signal RF of power amplification unit 27 intensity is delivered to, or fundamental frequency unit 21 can directly heighten fundamental frequency signal BB_
Sig intensity, to improve the intensity that Transmit Receive Unit 23 is delivered to the radiofrequency signal RF of power amplification unit 27.If conversely,
The temperature characterisitic of power amplification unit 27 is that power output rises as temperature rises, when the work of power amplification unit 27
Temperature rise, and cause power amplification unit 27 power output rise when, fundamental frequency unit 21 then can pass through Transmit Receive Unit
Control signal S2 controls Transmit Receive Unit 23, to reduce the radio frequency letter that Transmit Receive Unit 23 is delivered to power amplification unit 27
Number RF intensity, or fundamental frequency unit 21 can directly reduce fundamental frequency signal BB_sig intensity, to reduce Transmit Receive Unit
23 are delivered to the radiofrequency signal RF of power amplification unit 27 intensity.
Certainly in practical application, fundamental frequency unit 21 can be according to the characteristic of power amplification unit 27 or according to power amplification list
The look-up table (look up table) or equivalent behavior model that the characteristic of member 27 is established, while power control signal Vramp
And/or control unit control signal S1 and/or Transmit Receive Unit control signal S2 and/or fundamental frequency signal BB_sig, thereby with
Change the power output of power amplification unit 27 and/or the radiofrequency signal RF of input power amplifying unit 27 intensity, to cause
The power output of power amplification unit 27 and the relation of time meet related requirement or specification.
In an embodiment of the present invention, fundamental frequency unit 21 can by power amplification unit 27, Transmit Receive Unit 23 and/or its
The system and/or fundamental frequency unit 21 itself of his outside, obtain or estimate the work information of power amplification unit 27, such as power
The information such as the operating temperature of amplifying unit 27 and/or the radiofrequency signal RF of reception frequency and/or frequency range, and according to power amplification
The work information and its characteristic of unit 27, adjust the output signal characteristics of power amplification unit 27, or adjustment Transmit Receive Unit
23 are delivered to the radiofrequency signal RF of power amplification unit 27 characteristics of signals.
Connection described in the present invention refer between one or more objects or component be directly connected to either between
Connect in succession, such as one or more intermediate links can be there are between one or more objects or component.
Described in the system of specification perhaps, must and wording and the non-invention such as change limitation.Specification institute
The technical term used is not the limitation of the present invention mainly to carry out the description of specific embodiment.Used in specification
Odd number measure word (such as one and this) also can be multiple, unless the content in specification expressly states otherwise.Such as specification institute
The device referred to may include the combination for having two or more devices, and the material that specification is carried then may include
There is the mixing of many kinds of substance.
As described above, only presently preferred embodiments of the present invention, is not used for limiting the scope that the present invention is implemented, i.e.,
Equivalent change and modification carried out by all shapes according to described in the claims in the present invention protection domain, construction, feature and spirit, all should
It is included in protection scope of the present invention.
Claims (17)
1. a kind of compensation method of the power amplification unit of wireless radio frequency modules, it is characterised in that wireless radio frequency modules include one
Fundamental frequency unit, a Transmit Receive Unit, a control unit and a power amplification unit, and the fundamental frequency unit passes through the control unit
And the Transmit Receive Unit connects the power amplification unit, comprises the following steps：
Acquirement in advance or at least characteristic for measuring the power amplification unit in advance, the wherein characteristic include the power amplification unit
Power output size；
The characteristic of the power amplification unit is set in the fundamental frequency unit；
Characteristic according to the power amplification unit establishes a look-up table or an equivalent behavior model；
The characteristic of the fundamental frequency unit according to the power amplification unit, a transmission at least control signal to the control unit；
The fundamental frequency unit obtains at least one work information of the power amplification unit；
The fundamental frequency unit passes according to the work information of the power amplification unit and the look-up table or the equivalent behavior model, adjustment
Deliver to the control signal of the control unit；And
The control unit adjusts the output signal characteristics of the power amplification unit according to the control signal.
2. compensation method as claimed in claim 1, it is characterised in that the control signal is analog signal or data signal.
3. compensation method as claimed in claim 1, it is characterised in that the characteristic includes the power output of the power amplification unit
To the characteristic of temperature relation.
4. compensation method as claimed in claim 1, it is characterised in that the characteristic includes the power output of the power amplification unit
To the characteristic of frequency relation.
5. compensation method as claimed in claim 1, it is characterised in that the characteristic includes the output signal of the power amplification unit
To the characteristic of time relationship.
6. compensation method as claimed in claim 1, it is characterised in that the linearity that the characteristic includes the power amplification unit is special
Property.
7. compensation method as claimed in claim 1, it is characterised in that the bias that the characteristic includes the power amplification unit is special
Property.
8. compensation method as claimed in claim 1, it is characterised in that the characteristic includes the memory effect of the power amplification unit
Characteristic.
9. compensation method as claimed in claim 1, it is characterised in that the work information includes the work of the power amplification unit
Temperature or working frequency or work bandwidth.
10. compensation method as claimed in claim 1, it is characterised in that the work information includes the work of the wireless radio frequency modules
Make characteristics of signals.
11. compensation method as claimed in claim 1, it is characterised in that further comprising the steps of：The Transmit Receive Unit transmits
One radiofrequency signal is to the power amplification unit.
12. compensation method as claimed in claim 11, it is characterised in that further comprising the steps of：Fundamental frequency unit foundation should
Look-up table or the equivalent behavior model, adjustment are sent to an at least Transmit Receive Unit control signal for the Transmit Receive Unit,
And the Transmit Receive Unit then adjusts the characteristic of the radiofrequency signal according to the Transmit Receive Unit control signal.
13. compensation method as claimed in claim 11, it is characterised in that further comprising the steps of：Fundamental frequency unit foundation should
Look-up table or the equivalent behavior model, adjustment are sent to the fundamental frequency signal characteristic of the Transmit Receive Unit.
14. compensation method as claimed in claim 12, it is characterised in that the work information includes the work of the power amplification unit
Make temperature, the frequency or frequency range of the radiofrequency signal received.
15. compensation method as claimed in claim 11, it is characterised in that further comprising the steps of：Fundamental frequency unit foundation should
The work information of look-up table or the equivalent behavior model and the power amplification unit, adjustment are sent to the Transmit Receive Unit
An at least Transmit Receive Unit control signal, and the Transmit Receive Unit then should according to Transmit Receive Unit control signal adjustment
The characteristic of radiofrequency signal.
16. compensation method as claimed in claim 1, it is characterised in that the control signal include a power control signal and/or
One power amplification unit control signal.
17. compensation method as claimed in claim 16, it is characterised in that the fundamental frequency unit includes a digital-to-analogue conversion list
Member, and the power control signal is sent to the control unit through the D/A conversion unit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310594245.7A CN103701418B (en) | 2013-11-22 | 2013-11-22 | The compensation method of the power amplification unit of wireless radio frequency modules |
Applications Claiming Priority (1)
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| CN201310594245.7A CN103701418B (en) | 2013-11-22 | 2013-11-22 | The compensation method of the power amplification unit of wireless radio frequency modules |
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| US5831477A (en) * | 1995-11-07 | 1998-11-03 | Nec Corporation | Power amplifier system with variable output |
| CN2899284Y (en) * | 2006-01-19 | 2007-05-09 | 福建盛唐通讯科技有限公司 | Radio-frequency power amplifier |
| CN101604981A (en) * | 2008-06-10 | 2009-12-16 | 华硕电脑股份有限公司 | Can reduce the wireless communication apparatus and the relevant wireless signal emitter thereof of power consumption |
| CN101873149A (en) * | 2010-06-28 | 2010-10-27 | 深圳市桑达无线通讯技术有限公司 | High-power radio frequency system and radio frequency transmission method |
| TWI332749B (en) * | 2006-08-14 | 2010-11-01 | Realtek Semiconductor Corp | Power amplifier circuit having a bias signal inputted into an input terminal and method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5831477A (en) * | 1995-11-07 | 1998-11-03 | Nec Corporation | Power amplifier system with variable output |
| CN2899284Y (en) * | 2006-01-19 | 2007-05-09 | 福建盛唐通讯科技有限公司 | Radio-frequency power amplifier |
| TWI332749B (en) * | 2006-08-14 | 2010-11-01 | Realtek Semiconductor Corp | Power amplifier circuit having a bias signal inputted into an input terminal and method thereof |
| CN101604981A (en) * | 2008-06-10 | 2009-12-16 | 华硕电脑股份有限公司 | Can reduce the wireless communication apparatus and the relevant wireless signal emitter thereof of power consumption |
| CN101873149A (en) * | 2010-06-28 | 2010-10-27 | 深圳市桑达无线通讯技术有限公司 | High-power radio frequency system and radio frequency transmission method |
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